[media] rc: ene_ir: fix potential double free in ene_probe()

Since rc_unregister_device() frees its argument, the subsequently
call to rc_free_device() on the same variable will cause a double
free bug. Fix by set argument to NULL, thus when fall through to
rc_free_device(), nothing will be done there.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/media/rc/ene_ir.c b/drivers/media/rc/ene_ir.c
index ee6c984cade2..ed184f68c17c 100644
--- a/drivers/media/rc/ene_ir.c
+++ b/drivers/media/rc/ene_ir.c
@@ -1098,6 +1098,7 @@ exit_release_hw_io:
         release_region(dev->hw_io, ENE_IO_SIZE);
 exit_unregister_device:
         rc_unregister_device(rdev);
+        rdev = NULL;
 exit_free_dev_rdev:
         rc_free_device(rdev);
         kfree(dev);